Universal Self-tapping Screw with Countersunk Head

Universal self-tapping screws with countersunk head come in different variants: with full or partial thread, sharp or drill-type tip. But they all share a common feature — a head shaped like a truncated cone with a flat top, with a recess for cross-head screwdrivers or for a TORX bit set with a hexagonal star-shaped tip. These fasteners are used in construction as well as in the machine-building industry. The countersunk head configuration is barely noticeable once the screw is driven in. If needed, it can be masked with a special plug of matching color or filled with putty.

Universal self-tapping screws with countersunk head are made from carbon steel with high strength characteristics, as well as stainless steel grades A2 and A4 with absolute resistance to aggressive environments. Products made of plain steel are necessarily treated with white or yellow zinc to protect against corrosion.

FLOK supplies universal self-tapping screws in various types and sizes.

k	1.8	2.1	2.4	2.7	2.9	3.4
d1	6	7	8	8.8	9.7	11.6

L (mm)	d
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